Python Program to Print Hollow Mirrored Half Diamond Star Pattern

Write a Python Program to Print Hollow Mirrored Half Diamond Star Pattern using a for loop, while loop, and functions. This example uses the nested for loop to iterate and print the Hollow Mirrored Half Diamond Stars pattern.

rows = int(input("Enter Hollow Mirrored Half Diamond Pattern Rows = "))

print("Hollow Mirrored Half Diamond Star Pattern") 

for i in range(1, rows + 1):
    for j in range(1, rows - i + 1):
        print(' ', end = '')
    for k in range(1, i + 1):
        if i == k or k == 1:
            print('*', end = '')
        else:
            print(' ', end = '')
    print()

for i in range(rows - 1, 0, -1):
    for j in range(1, rows - i + 1):
        print(' ', end = '')
    for k in range(1, i + 1):
        if i == k or k == 1:
            print('*', end = '')
        else:
            print(' ', end = '')
    print() 

Output.

This Python program uses the while loop to print the Hollow Mirrored Half Diamond Star Pattern. We replaced the above for loop with a while loop.

rows = int(input("Enter Hollow Mirrored Half Diamond Pattern Rows = "))

print("Hollow Mirrored Half Diamond Star Pattern")

i = 1
while i <= rows:
    j = 1
    while j <= rows - i:
        print(' ', end = '')
        j = j + 1
    k = 1
    while k <= i:
        if i == k or k == 1:
            print('*', end = '')
        else:
            print(' ', end = '')
        k = k + 1
    i = i + 1
    print()

i = rows - 1
while i > 0:
    j = 1
    while j <= rows - i:
        print(' ', end = '')
        j = j + 1
    k = 1
    while k <= i:
        if i == k or k == 1:
            print('*', end = '')
        else:
            print(' ', end = '')
        k = k + 1
    i = i- 1
    print() 

Output

Enter Hollow Mirrored Half Diamond Pattern Rows = 13
Hollow Mirrored Half Diamond Star Pattern
            *
           **
          * *
         *  *
        *   *
       *    *
      *     *
     *      *
    *       *
   *        *
  *         *
 *          *
*           *
 *          *
  *         *
   *        *
    *       *
     *      *
      *     *
       *    *
        *   *
         *  *
          * *
           **
            *

In this Python example, we created a HollowMirroredHalfD function that accepts the rows, i value, and characters to Print the Hollow Mirrored Half Diamond Pattern. It replaces the star in the hollow mirrored half diamond pattern with a given symbol.

def HollowMirroredHalfD(rows, i, ch):
    for j in range(1, rows - i + 1):
        print(end = ' ')
    for k in range(1, i + 1):
        if i == k or k == 1:
            print('%c' %ch, end = '')
        else:
            print(' ', end = '')  
    print()
         

rows = int(input("Enter Hollow Mirrored Half Diamond Rows = "))

ch = input("Symbol in Hollow Mirrored Half Diamond Pattern = ")

for i in range(1, rows + 1):
    HollowMirroredHalfD(rows, i, ch)
        
for i in range(rows - 1, 0, -1):
    HollowMirroredHalfD(rows, i, ch)

Output

Enter Hollow Mirrored Half Diamond Rows = 14
Symbol in Hollow Mirrored Half Diamond Pattern = #
             #
            ##
           # #
          #  #
         #   #
        #    #
       #     #
      #      #
     #       #
    #        #
   #         #
  #          #
 #           #
#            #
 #           #
  #          #
   #         #
    #        #
     #       #
      #      #
       #     #
        #    #
         #   #
          #  #
           # #
            ##
             #